In-situ testing and heterogeneity of UFG Cu at elevated temperatures

• Autorzy: Petrenec M. , Král P. , Dvořák J. , Svoboda M. , Sklenička V.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The motivation of present investigation is the study of deformation-induced processes during in-situ tensile and compression test at elevated temperature in order to elucidate the role of the microstructure changes during creep testing. Design/methodology/approach: Experiments were conducted to investigate deformation-induced processes during in-situ tensile test at elevated temperature. Findings: It was found that creep resistance of UFG pure Al and Cu is considerably improved after one ECAP pass in comparison with coarse grained material, however, further repetitive pressing leads to a noticeable deterioration in creep properties of ECAP material. Researches limitations/implications: In the present work was found that ultrafine-grained microstructure is instable and significant grain growth has already occurred during heating to the testing temperature. Originality/value: The experiments conducted on pure Al and Cu found that their creep resistance is considerably improved after one ECAP pass in comparison with unpressed material.

Słowa kluczowe

EN

in situ testing; heterogeneity; creep behavior; EBSD

PL

testy in situ; niejednorodność; EBSD

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2014
• Tom: Vol. 62, nr 2
• Strony: 69--74
• Opis fizyczny: Bibliogr. 23 poz., rys.

Twórcy

autor

Petrenec M.

• TESCAN ORSAY HOLDING, a.s., Libušina tř. 21, Brno, CZ -623 00, Czech Republic

autor

Král P.

• Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno, CZ-616 62, Czech Republic

autor

Dvořák J.

• Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno, CZ-616 62, Czech Republic

autor

Svoboda M.

• Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno, CZ-616 62, Czech Republic

autor

Sklenička V.

• Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno, CZ-616 62, Czech Republic

Bibliografia

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